40c pins and bushings

[doc40c]

Hi everyone I'm new to the forum. After 15 years the pins and bushings on my 40c are giving up. I believe it has 420 sprockets. The chain has 4 bolt/rivets per pad and are 14 inches with grousers. From reading the posts on the forum are these chains from a 1010? Are the pin and bushing dimensions the same for 40c, 420 and 1010? The roller side of the chains are getting sort of thin. I'm not sure if it's worth repinning and bushing and building them up or if I should look for a different chain. The pads are in excellent shape and are perfect for my use. I know they're hard to find, but is there any 4 bolt chain available? Thanks.

[doc40c]

I found Lavoy's chart on undercarriage parts cross reference, so I got most of my ? answered.Thanks Lavoy and Paul!The old owner said this crawler was a 420 but the tag on the center tube says 40c serial #65 thousand something. They said the engine had been changed. I wonder if the center section was changed when they swapped engines?Thanks.

[Lavoy]

If the pads are bolted on, they are most likely 1010 chains, if they are riveted, they are Oliver/Cletrac chains.
Only 4 bolt chain available new is 350 chain.
Lavoy

[LMB]

Where is this chart you are speaking of.
Is there a reference of measuring chain pin bushing wear also?

[Tigerhaze]

Where is this chart you are speaking of.
Is there a reference of measuring chain pin bushing wear also?

This is the chart posted on an offsite link; I have also included the original post:

http://users.upwardaccess.com/trachte/c ... geXref.jpg

http://www.jdcrawlers.com/messageboard/ ... ercarriage

Pin and bushing wear is determined by measuring across 4 links (5 pins/bushings excluding the master). Here is a link for those measurement tables; make sure you review the directions for measurements at the top:

http://www.crawlerheaven.com/wearlimits.htm